Koru_Kinshi

So based off what I've been hearing about the new SC boost pulley that came out for the E55, I don't think I'll be getting it. Too many issues that have me worried.

Kleemann I know is a sure bet, but I don't want the whole package. I just want the pulley and belt if anything. I plan on getting an ECU/TCU tune from OE Tuning most likely. But out of the three makers, which pulley do you guys like the best or think is the best/most reliable?

I have no intention of going over 172 until further notice. I don't need that much power for a daily driver. Opinions and experience would be greatly appreciated. Planned mods are pulley, tune, intake for now. Later on I may consider short tube headers and phenolic spacers. Basically the same things I did on the 32.

Hulk

There's no issues with the sc pulley at this time

Koru_Kinshi

So the SC pulley sold by EC is not the one that's getting stuck or causing the sc crank shaft to fall off on many occasions?

Hulk

No, the pulley you are referring to is the crank pulley, the supercharger pulley is the smaller pulley on the blower, which has not caused any problems, and if it does it's not as big a problem as the keyway getting chewed up by a crank pulley

The sc pulley is a safer bet

chawkins2001

ASP welded pulleys are your safest bet. They have been around for the longest time and have a proven record of been bullet proof when installed correctly. I would stay away from the supercharger pulley as that design is to new and that manufacturer does not have good business practices.

Kleeman 168 is a deadly pulley and is extremely sound, it will put a full stage 3 in the 10's with the right conditions. Those are the only two I would even consider looking at right now.

Hulk

If he buys the sc pulley from EC, he's backed by EC
ASP are the best crank pulley

jcjmw

If I was stock, I would not do the crank pulley. I would instead do the SC pulley.

Koru_Kinshi

Does Kleemann offer the 168 just by itself? I also was under the impression that Kleemann products are acceptable under Mercedes' extended warranty parameters since they're an authorized tuner much like Brabus, Renntech, etc. This true?

jt2ma71

Working on cars myself i am pretty weary of removing the crank pulley anymore than i really have to. Ive read the ASP welded pulley's are solid.

The only pulley i personally trust is the kleeman 168, but im not even sure if kleeman sells it alone.

That the only other option in my eyes is the SC pulley. Its equivilant of a 168-170mm pulley which is a very good combo. Also much less margin for error when installing not to mention its easier to install. I would have no issues with whos selling it, they have been super helpful with me and answered all my questions even though i bailed last minute.

komp55

Let's not forget Renntech pullies. Zero reported issues ever; they're just a little pricey. You can never go wrong with a Renntech 168 or the much rarer 178. They can be installed using the correct factory crank pulley holder (unlike the Kleemann, which requires the non-factory specified locking of the flywheel) and their quality is top drawer.

But for no drama, the smaller S/C pulley is the no-brainer upgrade for those seeking the equivalent boost of a 168mm pulley.

Shifter

I believe the OP is correct some guys with the new sc pulley has had it Lock to the clutch after some driving and required more shims installed. Don't get this confused with the other crank pulley.

Hulk

The reports are anywhere from 5-6 shims

skratch77

Kleemann and renntech pullies are identical to each other,they both use a stock pulley and press a bigger outer ring over it with NO welding that will throw the crank off ballance

chawkins2001

I would not say the s/c blower pulley is a no brainer, after a few miles it is mating to the clutch. Cheap *** shims have to be installed, does not sound like a OEM fit to me.

PACougar

The factory ones come with shims as well.

chawkins2001

Why weren't the upd pullies mailed with shims then, it seems like r&d is actual real world, and not pre-release.

jcjmw

No that I am aware of. But, look in the classifieds, people are often selling their kleeman and upgrading to another. I did that and upgraded to the ASP 178.

As far as I know, Kleeman products are not acceptable under Mercedes warranty. Technically, any performance mod to the car can cause the dealer / SA to deem your warranty is void or not enforceable.

nicco

Pulley came with two or three shims

CharlyE500

Yes, Kleemann still sell the pulley alone but close to $2k at this point find a used or 172 ASP.

PACougar

The pulley's came with shims and instructions.

komp55

Their method of construction is similiar, but they're not identical. You cannot use the factory crank holder tool to install the Kleemann. You can use the tool on the Renntech pulley.

nizzle

Someone did say that EC's 172 is made by ASP right?

skratch77

Can you show me why it cant be used? Iv had a kleemann and renntech and they were both a pressed on outer ring on an oem stock 55k pulley.

How can one use the tool and the other not able too?

komp55

If you actually read my post, you'd see the no-brainer comment was made in reference was to "no drama" from a pulley standpoint. Needing to add a shim or two to obtain some additional clearance on the S/C snout is way less drama in my mind, than, say for example, paying a shop botch a crank pulley install, have them deny it to you (of course), them buying a second pulley for you anyway, attaching it to the crank that was messed up after the first install attempt, and then predictably have the replacement come off too because the crank was messed up to begin with after the first install and nobody bothered to confirm its condition before the second install. Maybe I'm missing something here, but which option seems like less drama to you?

komp55

Perhaps yours was different than the Kleemann pulley I used to own. All I know is what I've held in my own hands, and the factory tool can be used as is on the Renntech pulley, but couldn't be used on the Kleemann pulley. I've since sold both so I can't post a picture showing the differences between the two.